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Active Directory ( AD) is a directory service developed by Microsoft for Windows domain networks. Windows Server operating systems include it as a set of processes and services. [1] [2] Originally, only centralized domain management used Active Directory. However, it ultimately became an umbrella title for various directory-based identity ...
In the original Windows Server Domain system (shipped with Windows NT 3.x/4), machines could only be viewed in two states from the administration tools; computers detected (on the network), and computers that actually belonged to the domain. Active Directory makes it easier for administrators to manage and deploy network changes and policies ...
Active Directory can distribute GPOs to computers which belong to a Windows domain. By default, Microsoft Windows refreshes its policy settings every 90 minutes with a random 30 minutes offset. On domain controllers, Microsoft Windows does so every five minutes. During the refresh, it discovers, fetches and applies all GPOs that apply to the ...
Security Identifier. In the context of the Microsoft Windows NT line of operating systems, a Security Identifier ( SID) is a unique, immutable identifier of a user, user group, or other security principal. A security principal has a single SID for life (in a given domain), and all properties of the principal, including its name, are associated ...
A side effect of this change is the loss of ability to create a "read-only" domain controller. Windows Server 2008 reintroduced this capability. Nomenclature. Windows Server can be one of three kinds: Active Directory "domain controllers" (ones that provide identity and authentication), Active Directory "member servers" (ones that provide ...
It is most commonly implemented in Microsoft Windows environments (see Domain controller (Windows)), where it is the centerpiece of the Windows Active Directory service. However, non-Windows domain controllers can be established via identity management software such as Samba and Red Hat FreeIPA .
Active Directory Federation Services (ADFS), a software component developed by Microsoft, can run on Windows Server operating systems to provide users with single sign-on access to systems and applications located across organizational boundaries. It uses a claims-based access-control authorization model to maintain application security and to ...
AGDLP (an abbreviation of "account, global, domain local, permission") briefly summarizes Microsoft's recommendations for implementing role-based access controls (RBAC) using nested groups in a native-mode Active Directory (AD) domain: User and computer accounts are members of global groups that represent business roles, which are members of domain local groups that describe resource ...